Abstract: A portable air conditioner has a housing assembly and an operating unit including a refrigerant circulating system and an air guiding system both mounted in the housing assembly. The air guiding system has an air channel switching device and has an evaporating end fan and a condensing end fan both mounted in the air channel switching device. An operation mode switching method of the portable air conditioner has a cooling mode and a dehumidifying mode. In the dehumidifying mode, cool air drawn by the evaporating end fan flows through a condenser and is heated to become hot air and is discharged. Therefore, the portable air conditioner has both cooling function like an ordinary air conditioner and dehumidifying function like an ordinary dehumidifier.

Abstract: A portable air conditioner has a housing assembly and an operating unit including a refrigerant circulating system and an air guiding system both mounted in the housing assembly. The air guiding system has an air channel switching device and has an evaporating end fan and a condensing end fan both mounted in the air channel switching device. An operation mode switching method of the portable air conditioner has a cooling mode and a dehumidifying mode. In the dehumidifying mode, cool air drawn by the evaporating end fan flows through a condenser and is heated to become hot air and is discharged. Therefore, the portable air conditioner has both cooling function like an ordinary air conditioner and dehumidifying function like an ordinary dehumidifier.

Abstract: A dehumidifier comprises a main body and a main tank. The main body has a water collector, a secondary tank, a filtering assembly, and a water pump. The water collector has an exhaust hole. The secondary tank is located under the water collector and has a receiving hole aligned to the exhaust hole. The filtering assembly has a filter located between the exhaust hole and the receiving hole, and aligned to the exhaust hole. An area of the filter is bigger than an area of the exhaust hole. The water pump has a drawing opening communicating with the secondary tank and a draining opening communicating with the main tank. Thus, the water flowing out the exhaust hole will definitely pass through the filter before flowing into the secondary tank. Therefore, the filtering assembly prevents the water pump from drawing water with dusts and impurities and being damaged.

Abstract: A dehumidifier has a main body and a main tank. The main body has a secondary tank, a water pump, and a controlling assembly electrically connected to the water pump and having a starting position, a stopping position, and a float. The float is located in the secondary tank and is capable of moving with a water level inside the secondary tank. The controlling assembly controls the water pump to start or to stop according to the relative position between the float and the starting position or the stopping position. The main tank is detachably mounted on the main body, is located in a lateral side of the main body, and communicates with the water pump. With the controlling assembly, the water pump can be controlled to start only when necessary, thereby saving energy and reducing noises caused by prolonged running.

Abstract: A dehumidifier has a main body and a main tank. The main body has a secondary tank, a pump, and a retracting mechanism. A conduit portion of the retracting mechanism is mounted through and into the main tank, so the pump can draw water from the secondary tank and into the main tank. The main tank is mounted beside the main body and can be drawn upward to separate from the main body. The main tank has a first inclined surface. When the main tank is moved upward, the first inclined surface pushes the retracting mechanism, so the conduit portion retracts and is moved away from a moving path of the main tank when the main tank is being drawn upward. With the main tank mounted beside the main body, the main tank facilitates water pouring.

Abstract: An air conditioning device, which may be a dehumidifier or a movable air conditioner, has a main body and at least one concealed handle. Each concealed handle has a case, a cover, and a moving structure. The case has a finger accommodating space and a finger inserting opening communicating with each other. The movable cover is movably mounted in the finger inserting space in the case of the concealed handle, and thus the user's fingers can push to move the cover and then insert into the finger accommodating space to conveniently move or lift the main body. When not in use, the cover is pushed back by a resilient element of the moving structure, and then the cover is disposed in the finger inserting opening to cover the finger accommodating space, which enhances the aesthetic appeal and avoids dirt accumulation in the finger accommodating space.

Abstract: A dehumidifier has a main body and a main tank. The main body has a secondary tank, a pump, and a retracting mechanism. A conduit portion of the retracting mechanism is mounted through and into the main tank, so the pump can draw water from the secondary tank and into the main tank. The main tank is mounted beside the main body and can be drawn upward to separate from the main body. The main tank has a first inclined surface. When the main tank is moved upward, the first inclined surface pushes the retracting mechanism, so the conduit portion retracts and is moved away from a moving path of the main tank when the main tank is being drawn upward. With the main tank mounted beside the main body, the main tank facilitates water pouring.

Abstract: A dehumidifier comprises a main body and a main tank. The main body has a water collector, a secondary tank, a filtering assembly, and a water pump. The water collector has an exhaust hole. The secondary tank is located under the water collector and has a receiving hole aligned to the exhaust hole. The filtering assembly has a filter located between the exhaust hole and the receiving hole, and aligned to the exhaust hole. An area of the filter is bigger than an area of the exhaust hole. The water pump has a drawing opening communicating with the secondary tank and a draining opening communicating with the main tank. Thus, the water flowing out the exhaust hole will definitely pass through the filter before flowing into the secondary tank. Therefore, the filtering assembly prevents the water pump from drawing water with dusts and impurities and being damaged.

Abstract: A dehumidifier has a main body and a main tank. The main body has a secondary tank, a water pump, and a controlling assembly electrically connected to the water pump and having a starting position, a stopping position, and a float. The float is located in the secondary tank and is capable of moving with a water level inside the secondary tank. The controlling assembly controls the water pump to start or to stop according to the relative position between the float and the starting position or the stopping position. The main tank is detachably mounted on the main body, is located in a lateral side of the main body, and communicates with the water pump. With the controlling assembly, the water pump can be controlled to start only when necessary, thereby saving energy and reducing noises caused by prolonged running.

Abstract: A consequent-pole motor rotor with magnetic-flux-separating recesses has a main body and multiple magnets. The main body has multiple magnet holes, multiple rotor air hole assemblies, and multiple magnetic-flux-separating recess assemblies. The magnet holes and the rotor air hole assemblies are formed through the main body. The magnetic-flux-separating recess assemblies are radially formed in a radial outer surface of the main body and extend through two axial end surfaces of the same. Each magnetic-flux-separating recess assembly has at least one magnetic-flux-separating recess. The magnetic lines produced during the operating of the motor can be pushed by the magnetic-flux-separating recesses toward the center of the main body, so the outermost magnetic line will be less likely to deviate from its path and probability of cogging torque in the motor during operation is reduced.

Abstract: A rotor for a brushless motor has a main body and multiple magnet assemblies. The main body has multiple first holes that extend in a bending shape. The first holes are arranged annularly and a bent corner portion of each first hole is closer to the rotation axis of the main body. Each magnet assembly has two magnets formed as a rectangular block and is mounted in one of the first holes. An angle is between the magnets and an air interval is formed between the magnets. With such a structure, a conventional curved magnet is substituted and magnetic lines of force are more concentrated, so a stator tooth can provide higher magnetic flux density. Especially, with the air interval, the magnetic flux leakage may be decreased. Consequently, even though the total weight of magnets is reduced, the efficiency of motor is still improved.

Abstract: A quick release heat dissipation pipe assembly connected to a portable air conditioner and an opening of a window has a flexible heat dissipation pipe, a quick attachment collar, a quick release bushing and an adapter panel sequentially connected to one another. The quick release bushing is mounted quick detachably on the quick attachment collar. Therefore, the portable air conditioner may be attached to or detached from the opening of the window. The quick release heat dissipation pipe assembly excellently increases mobility of the portable air conditioner.

Abstract: An interior permanent magnet motor with flux strengthening includes a stator and a rotor. The stator has a mounting hole centrally formed through the stator and multiple stator teeth circumferentially formed on an inner portion of the stator between a periphery of the stator and the mounting hole. The rotor is rotatably mounted inside the mounting hole and includes multiple permanent magnets circumferentially and axially mounted inside the rotor. Each permanent magnet has two radial sides. The rotor further includes multiple flux barrier grooves. Each flux barrier groove is axially formed through a portion of the rotor located beside one of the two radial sides of a corresponding permanent magnet. The presence of the flux barrier grooves serves to shield and guide the lines of magnetic flux of the permanent magnets so as to concentrate the lines of magnetic flux, strengthen flux linkage, and reduce flux leakage.

Abstract: A mobile air conditioner has a shell, a heat dissipation device, a sleeve, a sliding door, a air-discharge device and an air cooling assembly. The shell has an internal space and a vent, and the vent is on the top of the shell. The heat dissipation device has an inlet and an outlet. The sleeve is connected between the vent and the outlet. The sliding door is movably mounted in the shell and corresponds to the vent. The air-discharge device and the air cooling assembly are disposed in the internal space. Hot air inside the mobile air conditioner is upward dissipated from the vent.

Abstract: A draining unit of a water-seal connector has a first fixing base, a second fixing base, a first sealing component, a soft base, a third fixing base, a second sealing component, a connecting cover, and an adaptor component. The second fixing base is connected to the first fixing base and has a first gateway communicating with the first fixing base and a second connecting part formed on the second fixing base. The first sealing component is mounted through the second fixing base. The soft base aligns with the second connecting part. The third fixing base is held in the soft base. The second sealing component is mounted through the third fixing base. The connecting cover is mounted on the soft base. The adaptor component is mounted securely in the connecting cover and has an outer connecting part extending out of the connecting cover.

Abstract: An easily mountable motor rotor has multiple magnet holders formed around a periphery of a rotor housing and spaced apart from each other by a gap for a magnet set including multiple magnets to be axially inserted therein. A cover is mounted on a top of the rotor housing to securely position the magnet set. Each of the cover and a bottom of the rotor housing has an opening communicating with a chamber inside the rotor housing and axially penetrated through by a rotor shaft. When the rotor housing is mounted in a stator and the rotor housing drives the rotor shaft to rotate, the magnet holders serve to securely hold the magnets during rotation of the rotor housing. The fixed gap between each adjacent two of the magnet holders prevents the center of gravity from being shifted. Accordingly, the motor rotor can be easily assembled in the stator in a highly efficient manner.

Abstract: A water tank has a container, a micro switch, a limiting assembly and a float. The float is mounted slidably in the container. The limiting assembly has an actuating rod that slides in a direction perpendicular to the sliding path of the float. An inclined guiding track is mounted between the float and the actuating rod to convert the moving direction. Since the actuating rod utilizes the movement to switch the micro switch on and off, the actuating rod and the micro switch need no abutting structures. Therefore, when the actuating rod is moved by an accidental force, the actuating rod self-moves back to its original position once the accidental force is removed. Then the micro switch is switched on again so that the household appliance is restarted without any extra acts by a user.

Abstract: A rotatable exhausting structure of a portable air conditioner has a housing and a connecting tube. The housing has through hole, and multiple holders and a resilient stop separately arranged around the through hole. The connecting tube has a flange formed on and around an outer surface of the connecting tube and held between the holders and the resilient stop of the housing, and is used to be connected to an exhausting pipe. Thus, the connecting tube is rotatable relative to the housing. When torque is caused in the exhausting pipe due to redirecting it, the connecting tube rotates accordingly. The exhausting pipe is not bent or twisted and keeps in good condition.

Abstract: A water tank has a container, a micro switch, a limiting assembly and a float. The float is mounted slidably in the container. The limiting assembly has an actuating rod that slides in a direction perpendicular to the sliding path of the float. An inclined guiding track is mounted between the float and the actuating rod to convert the moving direction. Since the actuating rod utilizes the movement to switch the micro switch on and off, the actuating rod and the micro switch need no abutting structures. Therefore, when the actuating rod is moved by an accidental force, the actuating rod self-moves back to its original position once the accidental force is removed. Then the micro switch is switched on again so that the household appliance is restarted without any extra acts by a user.